stevenson



June 16, 1925. 1,542,743

F. A. STEVENSONI REFERENCE CALENDAR Fld April 25, 1925 3HE-zul- Y will :FME 4A.l*S'rfS-frfNsonl..

BY A

Patented June 16, 1925.

UNITED STATES 1,542,743 PATENT* OFFICE.

FAYE A. STEVENSON, or LANCASTER, omo.

i REFERENCE CALENDAR.

Application led April 25, 1925. Serial No. 25,867.

and coepending application No. 694,906, tiled February 25, 1924 on an invention in per petual calendars.

yAlthough I consider the construction asv shown and described in said copending application to be preferred. in certain cases, yet the invention shown herein is considered novel and useful in many \vays,and is considered an yimproven'ient on the invention shown in my said cop'e`nding application ink that it provides a means `whereby yall the year numerals are so arranged that` theyv will all be exposed to vieu7 atthe same time, thus making it easier to refer to the desired year almost immediately.

Other advantages of this invention will be knoted in the following description and seen in the drawings inWhich like numerals represent like parts, and in Which- Figure l is a. front face view of a calendar embodying my invention. f

Figure 2 is a rear elevation of the same. Figure 3 is a transverse section taken on line 3-3 of Figure 1.

Figure t is a front face view of the rear rotatable member detached. A

Figure 5 is a similar View of the numeralbearing or .intermediate member detached.

In this invention, a face plate 1 isl provided with a` number slot 2, a month slot 3, andy a hole 4 tor suspending the device from a nail or pin. The face plate is preferably provided with a curved group of legends about the number slot 2 to designate the names ot' the days of theweek.

Arranged in the rearo'f the face plate 1 is a rotatable numeral-bearing member or disk 6. The rotatable member 6 is provided upon its front face with groups of numerals 7, and these groups-are. arranged in spiral overlapping relation. The numerals in each group extend from lto 31 inclusive,in

-' consecutive order, and thenumeral 1 of one group is arranged above and adjacent to the numeral 8 in the next group. The member 6 is providedwith radial lines 8, as shown. The groups ot' numerals 7 are visible throughthe number slot 2, as clearly indicated in Figure 1. Disposed in the rear of the numeral-'bearing member 6 is a rotatable month-bearing and year-bearing member or disk 9, having a larger diameter than the same. The month-bearing member 9 is provided upon its marginal edge projecting radially beyond the member 6 with month legends 10, and if desired and in certain instances, with legends 11, indireating the number of days in the particular month. Then thus assembled, the month legends 10 are visible through the 'month opening 3. The members 6 and 9 are pivotally secured to the front plate 1 by means of a pivot element or pin 12. The month legends are arranged consecutively in chronological order.

Upon the rear tace of the month-bearing member 9 are provided annular groups of numerals 13, which designate the years, between any given period, such ask between 1925 and 1947. The leap years are underscored, and occur twice in close relation, as indicated 14. A suitable'legend k15 is preferably provided near the leap years. The month-bearing member 9'is provided vwith openings 16, corresponding in number and arrangement to the numerals 13 of the several years, and these openings are adaptedto be brought mto registration with an .opening 17, formed upon the numeralbean ing member 6. A detachable fastening means 18 may lbe permanently held Within the opening 17 ,and inserted Within a selected opening 16, and locked therein.

To use, the numeral-bearing member 6 and the month-bearing member 9'may be turned with relation to each other, until the desired year is selected It the calendar is to be used for the year 1925, then the member 6 is turned With relation tothe member 9 until the pin 18 will enter the opening 16, adjacent the year 1925.- This pin 18 will then hold the members 6 and 9 so that they may be rotated together. If the calendar for January 1925 is desired, the members 64 and 9 Will be rotated until the January legend 10 is visible through the month slot 3. That 'portion of the numeral groups 7, visible through the numeral slot 2, in combina.- tion with the legends 5, constitute a calendar for January 1925. At the end of this month,

the members 6 and 9, locked together, are turned clockwise to bring the next month, February, to the slot 3, and the calendarfor that month is accordingly provided. The operationis continued in a similar manner throughout the entire year. Vhen the calendar is adjusted for the month February, it is not turned for the next month, March, as the calendar is the same for these twomonths. lBesides providing a continuous calendar it is seen that the calendar for any month during any of the years shown may be` referred to very quickly.

It will.y be noted that the groups of numerals 7 provide 31 days for each month, but I have printed the number of days for the months adjacent to the month designations. However, the number of days for a. month n'ia'y be determined, for the operator may simply turn tofthe next month and by notingl on which day of the Weel; the first of the following month comes, he can quickly see on what day the previous month ends. It isv seen that Vat the .end of the yea-r 1925` a relative turning movement will be eli'ected between the members 6 and 9 .and the pin 18 carried bythe member G will be inserted through theopening 16` adjacent the legend 1926.

It is noted that the leap year numerals are dnplicatedas seen in the series of numerals lf3 on the back ofthe member 9. The two duplicated leap-year designations have been underscored, or may be otherwise distinguished trom'` the other year designations, as-by printing in a diiterent color, in order toniotify the user ofthe device that the year is a leap. year and since in all' leap years February has 29l days it is necessary for the user on the 29th day of February of? ,a leap yea-r, to again effect a relative turning mevement between members 6 and 9, so tha-tthe pin. `19 may be passed into the next opening 16 adjacent the nentleap yea-1" designation, so` as to. bring the members 6' and i9' in proper relation toeach other toprovide the' calendarY for months of' that. leapyear.

iilthough the calendar shown lin the drawings is especially adapted for a` certain numberof years this period may be extended' in various ways, as for example, by increasingA the number of spaces for t-he year numerals 13; However, the year numerals may be ignored,-in the operation of the lcalendar 'although they are Vpreferably employed. By effecting a relative movethe remaining of numerals for additional years at one side ofthe annular group 13, the calendar can be convenient-ly used to iind any date during any period ofel` or 67 years depending upon the number of rows of year numerals which are added.

t is seen that calendars embodying my inventionmay be made in a variety of different forms and used in. different ways without departing from the essential principle discoveredby me and? shown and described in the present application and disclosed in my aboveI referred? tox It is apparent that there are many ways of applying this principle. of mine, other than in the particular forms l have shown.

I claim:

A calendar comprising a faceplate havingv a number slot andi month display means, a rotatable,member positioned in the rear of said1 faceplate and provided with numerals imlicating the days of the month, such. numerals being visible through the number slot, a second-rotatable member in therear of' the face-plate andvhaying month designations arranged consecutively thereon and adapted to be indicated by said month display means, the second rotatable member being provided upon its rear face with a group of year designations arranged thereonin numerical order andha-ving openings corresponding-in number'- and arrangement to said year designationsmnd a locking element carried by the first named rotatable lmember and adapted to -be inserted within selected opening of the second named rotatable member sol that the said members may be locked togetherto rotate as a unit.

cti-pendingA application 

